I am a Linux Administrator and am facing a strange network problem in CentOS 7.4.1708. Public network will not respond until we manually turn off and turn on enp7s0f0 interface. It happens atleast two times in a day. I am able to access server via private network and issue is only with public interface. Also I would like to say you that am facing same problem in most of servers that have CentOS 7.4.1708.

We have checked all logs and there is nothing to trace this issue. Some blogs it is advised to disable network manager and I have done it. Still it is happening. However we are using CentOS for more than one year and there is no problem with CentOS 7 server upto 7.3 version. I don't think that it is hardward issue as 7.3.1611 version is running fine on same server specification. Problem is happening only for latest version. I don't know whether anyone is facing similar issue. So please help me to sort it out.

Thanks for reply. I think you have confused with output. Those are output of two different servers. I have mentioned it as first and second server. I just want to show you all that I am facing same issue in multiple servers which is of same release 7.4.1708.